init

middleware.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"os"
+	"stream-poc2/model"
+
+	"github.com/gin-gonic/gin"
+)
+
+func mediaMustExists(ctx *gin.Context) {
+	id := ctx.Param("id")
+	metadata, err := loadMediaMetadata(id)
+	if err != nil {
+		if os.IsNotExist(err) {
+			ctx.AbortWithStatus(404)
+			return
+		}
+		ctx.AbortWithStatus(500)
+		return
+	}
+
+	ctx.Set("m", metadata)
+	ctx.Set("mid", id)
+}
+
+func getMetadata(ctx *gin.Context) (string, model.MediaMetadata) {
+	m, ok := ctx.Get("m")
+	if !ok {
+		panic("failed to load key for media metadata")
+	}
+	mid, ok := ctx.Get("mid")
+	if !ok {
+		panic("failed to load key for media id")
+	}
+	return mid.(string), m.(model.MediaMetadata)
+}